Employees' Stock Incentive Plans and Management Incentive Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	6 Months Ended	0 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended		1 Months Ended	3 Months Ended		6 Months Ended		9 Months Ended	1 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended
	Jun. 07, 2013	Oct. 27, 2013	Oct. 16, 2013 2013 Omnibus Plan Employee Stock Option	Oct. 27, 2013 2013 Omnibus Plan Employee Stock Option	Oct. 27, 2013 2013 Omnibus Plan Employee Stock Option	Oct. 27, 2013 Selling, General and Administrative Expenses	Oct. 28, 2012 Selling, General and Administrative Expenses	Jun. 07, 2013 Selling, General and Administrative Expenses Stock Option and Restricted Stock Plans	Oct. 27, 2013 Selling, General and Administrative Expenses Stock Option and Restricted Stock Plans	Oct. 28, 2012 Selling, General and Administrative Expenses Stock Option and Restricted Stock Plans	Oct. 27, 2013 Selling, General and Administrative Expenses Stock Option and Restricted Stock Plans	Jul. 28, 2013 Selling, General and Administrative Expenses Stock Option and Restricted Stock Plans	Jan. 25, 2012 Selling, General and Administrative Expenses Stock Option and Restricted Stock Plans	Jun. 07, 2013 Selling, General and Administrative Expenses LTPP	Oct. 27, 2013 Selling, General and Administrative Expenses LTPP	Oct. 27, 2013 Selling, General and Administrative Expenses LTPP	Oct. 27, 2013 Selling, General and Administrative Expenses 2013 Omnibus Plan Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated vesting expense of stock based awards	$ 24.3
Employees Stock Incentive Plans And Management Incentive Plans (Textuals) [Abstract]
Pre-tax compensation cost								26.1	0.5	11.8	2.4		18.7	3.8	2.4	11.1	0.2
Tax benefit								7.9	0.2	4.1	0.9		6.2	1.3	0.8	3.8
After-tax compensation cost						$ 0.3	$ 7.7	$ 18.2	$ 12.5			$ 1.5		$ 2.5	$ 1.6	$ 7.3
Performance Period In Years For Dividends Paid		2 years
Stock options			14,300,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price			$ 10.00
Exercise price (usd per share)				$ 10.00	$ 10.00
Award vesting period					5 years
Weighted average grant date fair value				$ 2.43
Risk-free interest rate				1.41%
Expected term				5 years
Expected dolatility rate				24.30%
Expected forfeiture rate				5.00%
Expected dividend rate				0.00%